Packet



y 1954 D. R. P. JACKSON PACKET Filed Jan. 6. 1950 INVE/Yfdl? 3, LOW,(La, M$W

Patented July 6, 1954 don, England, assignor to Molins Machine CompanyLimited, London, England, 'a British company Application January 6,1950, Serial No. 137,228

Claims priority, application Great Britain January 26, 19.49

1 Claim.

This invention concerns improvements in or relating to packets and moreparticularly packets of rectangular block shape such as are used forcigarettes. These packets are made by folding up a blank of paper orthin card about a former, often the article (e. g. a batch ofcigarettes) to be enclosed in the packet, and securing the foldedportions to one another by adhesive. A well-known type of such packet isthat termed block-ended which is made by folding a rectangular blankinto a U about one end and two broad sides of the former and thenfolding parts of the blank extending beyond said end and sides insuccession on to the two narrow sides of the former. When the formerconstitutes part of a machine the most usual method is first to folddown those parts of the blank lying in the plane of one broad side on tonarrow sides of the former to form long side folds and after that tofold down the parts extending from said end so that they lie on theaforesaid long side folds and finally to fold down the remaining partsof the blank lying in the plane of the other broadside so thatthoseremaining parts form long side folds each of which overlaps one ofthe other long side folds and the portions folded down on top of saidfolds, these latter portions being usually termed tucks. The result isan open cup closely covering an end and four sides of the former. thearticle to be enclosed in the packet it is much easier to make the tucksfirst and follow them with the long side folds in succession.

The packet in either caseis neat and tight but owing to the nature ofthe folding operations, several thicknesses of overlapping materialoccur on each side face at the end where the tuck is made and in orderto produce rather flatter folding it is sometimes the practice toseparate the material which is to form the tuck from that which is toform the long side folds by slitting the blank from the edges for adistance equal to When the former is chines, as the edge of a long sidefiap formed by one of said slits is sometimes displaced and According tothe invention there is provided a blank for a block-ended packet,wherein the material to form a tuck is separated from the material toform corresponding side folds by slits extending inwards from an edge ofthe blank for a distance equal to the width of a side fold, said slitsconverging from the edge of the blank to a width equal to the thicknessof the packet to be made from the blank, whereby that edge of a sidefold which is nearer the block end in a packet made from the blank is atan acute angle to the endface of the packet and entirely within the areaof a side of the packet.

Further according to the invention there is provided a packet made froma blank as set forth in the preceding paragraph wherein the tucks arefirst folded at right angles to the neighbouring end of the packet,whereafter the long side folds are folded down in succession and securedto one another and to the corresponding tucks by adhesive.

A block-ended packet according to the invention will be described by wayof example with reference to the accompanying drawing in which:

Figure l is a plan of a packet blank.

Figure 2 is a perspective view of a finished packet, the example chosenbeing of the open cup type as used almost universally in the UnitedStates of America.

Referring to Figure 1, the blank is a rectanguv lar sheet of paper Ihaving longitudinal crease lines 2 and transverse crease lines 3 whichterminate where they meet the longitudinal crease lines and define thebase of the finished packet, Figure 2. These crease lines may be real,in which case the blank is creased during feeding, or imaginary, inwhich case they appear only when the blank has been folded to form apacket.

The blank, has four slits 4 extending from the crease lines 2 to theneighbouring edges and diverging as shown. The material between eachpair of slits 4 forms a tuck of the packet, and as shown these are oftrapezoidal shape, and consequently narrow triangular portions 5 at eachside of a tuck will be folded or doubled over as the side folds aremade, but these portions are quite small and do not interfere with theclose neat folding of the tuck and side folds. The drawing is to scalefor a packet for twenty cigarettes in three rows.

From Figure 2 it will be seen that the lower edges 6 of the side foldsmake an acute angle with the end face of the packet and lie entirelywithin the area of the side of the packet.

What I claim as my invention and desire to secure by Letters Patent is:

An elongated block-ended packet of the type having side folds at eachnarrow side of the packet and tucks adjacent the base of the packetlying beneath the side folds, said packet being formed from asubstantially rectangular blank having at each side thereof asymmetrically arranged pair of slits extending inwardly from theadjacent edge of the blank for a distance equal to the width of thecorresponding side fold, each pair of slits converging inwardly andbeing spaced at the inner ends thereof by a distance equal to the widthof the narrow side of the packet, each slit forming with the adjacentedge of the blank an angle greater than 45, the side folds lying oneover the other in the folded packet, and the tuck at each side lyingbeneath the adjacent side folds, a triangular portion at each side ofeach tuck being folded back between the tuck and the adjacent sidefolds, whereby that edge of each side fold adjacent the packet baseforms with the base an angle less than 45 and lies entirely Within thearea of the packet side.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,411,510 Peterson Apr. 4, 1922 1,591,427 Leary July 6, 19261,882,094 Rauber et a1 Oct. 11, 1932 2,041,679 Kemp May 19, 1936

